FR2406727A1 - Electronic fuel injection system for IC engine - has air flow detector responding to pressure upstream of throttle, with signal fed to circuit which also receives tachometer output - Google Patents

Electronic fuel injection system for IC engine - has air flow detector responding to pressure upstream of throttle, with signal fed to circuit which also receives tachometer output

Info

Publication number
FR2406727A1
FR2406727A1 FR7731689A FR7731689A FR2406727A1 FR 2406727 A1 FR2406727 A1 FR 2406727A1 FR 7731689 A FR7731689 A FR 7731689A FR 7731689 A FR7731689 A FR 7731689A FR 2406727 A1 FR2406727 A1 FR 2406727A1
Authority
FR
France
Prior art keywords
throttle
engine
fuel injection
air flow
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR7731689A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR7731689A priority Critical patent/FR2406727A1/en
Publication of FR2406727A1 publication Critical patent/FR2406727A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow

Abstract

A differential pressure transducer produces a signal which is proportional to the pressure difference between the air inlet filter and a point immediately upstream of the throttle. Its output signal is fed to a control circuit which also receives a signal from a tachometer. The control circuit contains analogue to digital converters and digital calculating units. Its output is used to control the fuel injection to maintain the correct air fuel ratio. the use of the pressure upstream of the throttle makes the air flow measurement more accurate and independent of the condition of the engine.
FR7731689A 1977-10-21 1977-10-21 Electronic fuel injection system for IC engine - has air flow detector responding to pressure upstream of throttle, with signal fed to circuit which also receives tachometer output Withdrawn FR2406727A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7731689A FR2406727A1 (en) 1977-10-21 1977-10-21 Electronic fuel injection system for IC engine - has air flow detector responding to pressure upstream of throttle, with signal fed to circuit which also receives tachometer output

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7731689A FR2406727A1 (en) 1977-10-21 1977-10-21 Electronic fuel injection system for IC engine - has air flow detector responding to pressure upstream of throttle, with signal fed to circuit which also receives tachometer output

Publications (1)

Publication Number Publication Date
FR2406727A1 true FR2406727A1 (en) 1979-05-18

Family

ID=9196777

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7731689A Withdrawn FR2406727A1 (en) 1977-10-21 1977-10-21 Electronic fuel injection system for IC engine - has air flow detector responding to pressure upstream of throttle, with signal fed to circuit which also receives tachometer output

Country Status (1)

Country Link
FR (1) FR2406727A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026642A2 (en) * 1979-09-27 1981-04-08 Ford Motor Company Limited A method for controlling the supply of fuel to an internal combustion engine
WO1988004361A2 (en) * 1986-12-01 1988-06-16 Brunswick Corporation Throttle-position sensor for an electronic fuel-injection system
CN111237070A (en) * 2018-11-28 2020-06-05 罗伯特·博世有限公司 Method for determining the air mass flow of an internal combustion engine
CN113339136A (en) * 2021-07-26 2021-09-03 潍柴动力股份有限公司 Method and device for calculating rear pressure of throttle valve and vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026642A2 (en) * 1979-09-27 1981-04-08 Ford Motor Company Limited A method for controlling the supply of fuel to an internal combustion engine
EP0026642A3 (en) * 1979-09-27 1982-02-03 Ford Motor Company Limited A method for controlling the supply of fuel to an internal combustion engine
WO1988004361A2 (en) * 1986-12-01 1988-06-16 Brunswick Corporation Throttle-position sensor for an electronic fuel-injection system
WO1988004361A3 (en) * 1986-12-01 1988-07-14 Brunswick Corp Throttle-position sensor for an electronic fuel-injection system
CN111237070A (en) * 2018-11-28 2020-06-05 罗伯特·博世有限公司 Method for determining the air mass flow of an internal combustion engine
CN113339136A (en) * 2021-07-26 2021-09-03 潍柴动力股份有限公司 Method and device for calculating rear pressure of throttle valve and vehicle

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Legal Events

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